build: switch to hybrid build for Kotlin/JS web-app and optimize Docker setup

Replaced multi-stage Docker builds with a hybrid approach that pre-builds frontend artifacts locally and copies them into the container. Removed Kotlin Multiplatform configurations from the root project to resolve NodeJsRootPlugin conflicts. Adjusted `.dockerignore` to allow pre-built artifacts and increased Gradle/Kotlin daemon memory for faster builds. Updated Caddyfile for runtime stability and added documentation for new build processes.

gradle.properties

@@ -4,7 +4,8 @@ android.nonTransitiveRClass=true
 
 # Kotlin Configuration
 kotlin.code.style=official
-kotlin.daemon.jvmargs=-Xmx3072M -XX:+UseParallelGC -XX:MaxMetaspaceSize=1024M
+# Increased Kotlin Daemon Heap for JS Compilation
+kotlin.daemon.jvmargs=-Xmx4g -XX:+UseParallelGC -XX:MaxMetaspaceSize=1g
 
 # Kotlin Compiler Optimizations (Phase 5)
 kotlin.incremental=true
@@ -17,7 +18,8 @@ kotlin.compiler.execution.strategy=in-process
 kotlin.stdlib.default.dependency=true
 
 # Gradle Configuration
-org.gradle.jvmargs=-Xmx3072M -Dfile.encoding=UTF-8 -Dkotlin.daemon.jvm.options\="-Xmx2048M" -XX:+UseParallelGC -XX:MaxMetaspaceSize=1024M -XX:+HeapDumpOnOutOfMemoryError -Xshare:off -Djava.awt.headless=true
+# Increased Gradle Daemon Heap
+org.gradle.jvmargs=-Xmx4g -Dfile.encoding=UTF-8 -Dkotlin.daemon.jvm.options\="-Xmx3g" -XX:+UseParallelGC -XX:MaxMetaspaceSize=1g -XX:+HeapDumpOnOutOfMemoryError -Xshare:off -Djava.awt.headless=true
 org.gradle.workers.max=8
 org.gradle.vfs.watch=true